| 基于DSP的数字图像采集、压缩系统的设计与实现 |
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| 引用本文： | 李世军,黄锋,屈喜龙,郭照南.基于DSP的数字图像采集、压缩系统的设计与实现[J].电子技术应用,2009,35(7). |
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| 作者姓名： | 李世军 黄锋 屈喜龙 郭照南 |
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| 作者单位： | 湖南工程学院,电气信息学院,湖南,湘潭,411101 |
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| 基金项目： | 湖南省教育厅资助项目，湖南省教育厅资助项目，湖南省教育厅资助项目 |
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| 摘 要： | 一种基于高速数字信号处理器TMS320VC5410DSP和CPLD的图像采集、压缩系统,分析了系统设计时的各个关键技术环节,介绍了JPEG图像编码算法的DSP的实现,讨论了图像编码中DCT变换的实现和优化,利用DSP的乘法累加指令和双字加/减法指令快速实现DCT。
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| 关 键 词： | DSP JPEG DCT变换 |
Design and implementation of digital image acquisition and compression system based on DSP |
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| LI Shi Jun,HUANG Feng,QU Xi Long,GUO Zhao Nan.Design and implementation of digital image acquisition and compression system based on DSP[J].Application of Electronic Technique,2009,35(7). |
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| Authors: | LI Shi Jun HUANG Feng QU Xi Long GUO Zhao Nan |
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| Abstract: | A hight-speed image data acquisition and compression system based on high-speed DSP TMS320VC5410 and CPLD is presented ,and key problems of each unit are also analyzed. The realization of JPEG codnig based on DSP is introduced. Especially the realization and optimization of DCT transformation is discussed ,and it is realized fast with DSP multiplication-accu-mulation instructions and double-word additon/subtraction instuctions. |
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| Keywords: | DSP JPEG |
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